This bug is created as a clone of upstream ticket:
https://fedorahosted.org/freeipa/ticket/4424

When IPA is installed in the environment managed by some other DNS server and IPA DNS is not used then IPA should update its DNS entries in this external DNS during installation.

We should make IPA servers send update requests to create/store SRV/TXT/other
records needed by FreeIPA itself to a separate DNS infrastructure. This is
missing. The framework can use TSIG (not necessarily GSS-TSIG) updates to a different DNS server when replicas are added/removed/changed.